Cooking stove with thermoelectric storage



Patented June 21, 1927.

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snconno sn'cnanorn, oriivixmiv; ITALY.

COOKING STOVE" WITH" '1 HERMoEnnotrnIo STORAGE.

Application filed Apr1l'15, 1926,-Seria1 No. 102,189; and-in Germany April 18; 1925.

This invention 1 relates to cooking. stoves provided with electrically-heated accumulating or storage elements.

Cooking stoves are known in which the 5 heatggenerated without interruption for the twenty-four hours,by electric heating elements, is stored in bodies having a large heating capacity.

The efficiency of these stoves is lowered by reason of losses by radiation which make themselves felt during the whole twentyfour hours. It is in consequence necessary in these stoves carefully to protect the accumulating or storage bodies against radiation to the outside, which is difficult as regards their upper surface with which the kitchen utensils come into contact. This has been attempted by the provision of recesses in the storage bodies, the bottom walls of which recesses constitute the heating surfaces in question and which are closed by insulating plugs; but while such arrangement has given 00d results from the thermic standpoint, it hinders the cook and makes cooking difficult.

This invention has for its object to improve the efiiciency of such stoves and at the same time render them more convenient. Stoves provided with these improvements ar characterized by the fact that various plugs or stops of reduced height are placed in the aforesaid recesses in such a manner that they can slide laterally in grooves without leaving the wall which encloses the stove, thus preventing any loss of the heat contained in the plugs.

The accompanying drawing shows, by way of example, two methods of carrying out the present invention. a

Figure 1 shows in vertical section, a stove suitable for family use. a I

Figure 2 shows in transverse vertical section a range suitable for hotels and'other similar applications.

In the arrangement shown in Figure 1, the heat-accunnilating or storage block 1 in which the thermo-electric elements 2 are disposed, is protected laterally by a refractory and insulated wall 3; its bottom may constitute the top of a cooking oven (not shown) and its upper surface forms the sole of the cooking chamber 4. Above this block are disposed plugs 5, 6, 7 and 8 made of copper, which can slide laterally in order to cover and uncover the surface of the block if necessary.

'llhetwoblOck's of'each tier 5 -7 and 6 -8,

can' be replaced by simple blocks in guides butunj thatca'se the stove will assume a shape vantag of improving the thermal insulation by the effect of the interposed cushions of air and the effects of the reflection from the under surfaces of the blocks.

During the operations of cooking the losses of heat may become considerable, since the block-protecting plugs are withdrawn. To eliminate these losses, covers 9, 9 themselves mounted in guides, may be employed which have sufficient height to surpass the greatest height of the utensils employed. These covers may be made of enamelled iron if an insulating and heat-reflecting enamel be used, and they may also conveniently be provided with openings 10, 10 to allow the escape of fumes. When these covers are in place, they form a closed cooking chamber, almost an oven; it is also possible to introduce into the interior of these covers electric heating elements, which may be inserted in the circuit when the cover is closed, whereby the heating chamber becomes a true oven.

In the construction shown in Figure 2, there is illustrated a stove with two fronts more suitable for use in hotels, restaurants and the like. In this case, the accumulator blocks 1, 1 can be covered bythe plugs 5 p and 8 sliding in a direction normal. to the two faces of the stove, preferably so that they are superposed in the centre of the stove. Covers of enamelled iron 9, 9 assume a more complete insulation during accumulation and during use. This arrangement allows of lengthening the stove as much as is necessary and without limitation.

The constructional details of the stoves may be varied without departing from the spirit of the invention.

I claim as my invention:

1. An electric cook stove, comprising a casing; a cooking chamber therein; heat storing means disposed in said chamber and provided with internal electric heating ele ments; and a plurality of protecting plugs disposed immediately above said storage means and movable laterally independently of and relatively to each other, while reloo and reflecting material mounted [or sliding movement immediately above and relatively to said plugs to close-the space above the storage means when the plugs themselves have been moved into position to uncover said means.

3. An electric cook stove, according to claim 1, in which the several protecting plugs are arranged to slide in a plurality of superposed horizontal planes, whereby they may be brought into superposed position in the median part of the stove.

In testimony whereof I afiix my signature.

SECONDO SACERDOTE. 

